9999446371200 has 1920 divisors, whose sum is σ = 43531690356000. Its totient is φ = 2228340326400.

The previous prime is 9999446371183. The next prime is 9999446371331. The reversal of 9999446371200 is 21736449999.

9999446371200 is a `hidden beast` number, since 99 + 99 + 446 + 3 + 7 + 12 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1920).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 12935894014 + ... + 12935894786.

Almost surely, 2^{9999446371200} is an apocalyptic number.

9999446371200 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9999446371200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21765845178000).

9999446371200 is an abundant number, since it is smaller than the sum of its proper divisors (33532243984800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9999446371200 is a wasteful number, since it uses less digits than its factorization.

9999446371200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182 (or 1156 counting only the distinct ones).

The product of its (nonzero) digits is 26453952, while the sum is 63.

The spelling of 9999446371200 in words is "nine trillion, nine hundred ninety-nine billion, four hundred forty-six million, three hundred seventy-one thousand, two hundred".